JPS558491A - Surface treating method of copper product - Google Patents

Surface treating method of copper product

Info

Publication number
JPS558491A
JPS558491A JP8240578A JP8240578A JPS558491A JP S558491 A JPS558491 A JP S558491A JP 8240578 A JP8240578 A JP 8240578A JP 8240578 A JP8240578 A JP 8240578A JP S558491 A JPS558491 A JP S558491A
Authority
JP
Japan
Prior art keywords
copper
patina
powder
clear
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8240578A
Other languages
Japanese (ja)
Other versions
JPS6022066B2 (en
Inventor
Hachiro Oguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8240578A priority Critical patent/JPS6022066B2/en
Publication of JPS558491A publication Critical patent/JPS558491A/en
Publication of JPS6022066B2 publication Critical patent/JPS6022066B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/52—Treatment of copper or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

PURPOSE: To let copper product surfaces be always covered and protected with a patina layer despite aging of the clear layer containing patina powder by forming a Cu2O surface on copper surfaces then coating the clear containing patina powder.
CONSTITUTION: After the copper surfaces of the blank made of copper or having undergone copper plating are mechanically or chemically roughened, they are coated with an aqueous copper nitrate solution or mixed aqueous solution of copper nitrate and edible salt. At this time, a Cu2O film is formed on the copper surfaces of the blank, whereby the surfaces are activated to make production of patina easy. Thereafter, the clear mixed with patina powder, e.g., powder form basic copper sulfate, basic copper carbonate, etc. is coated on the Cu2O film. Even if the clear layer of this treated product ages and peels, the Cu2O film appears and produces patina extremely fast and therefore the appearance of the copper ground does not occur and the surfaces will be covered almost always with the patina layer.
COPYRIGHT: (C)1980,JPO&Japio
JP8240578A 1978-07-05 1978-07-05 Surface treatment method for copper products Expired JPS6022066B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8240578A JPS6022066B2 (en) 1978-07-05 1978-07-05 Surface treatment method for copper products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8240578A JPS6022066B2 (en) 1978-07-05 1978-07-05 Surface treatment method for copper products

Publications (2)

Publication Number Publication Date
JPS558491A true JPS558491A (en) 1980-01-22
JPS6022066B2 JPS6022066B2 (en) 1985-05-30

Family

ID=13773674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8240578A Expired JPS6022066B2 (en) 1978-07-05 1978-07-05 Surface treatment method for copper products

Country Status (1)

Country Link
JP (1) JPS6022066B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129064A (en) * 1980-03-12 1981-10-08 Takashi Ishikawa Coating
JPS6137975A (en) * 1984-07-27 1986-02-22 Mitsui Mining & Smelting Co Ltd Treatment of artificial verdigris
JPS6438176A (en) * 1987-07-21 1989-02-08 Takagi Toso Kk Verdigris producing technique in film of solvent-soluble paint

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129064A (en) * 1980-03-12 1981-10-08 Takashi Ishikawa Coating
JPS6137975A (en) * 1984-07-27 1986-02-22 Mitsui Mining & Smelting Co Ltd Treatment of artificial verdigris
JPS6438176A (en) * 1987-07-21 1989-02-08 Takagi Toso Kk Verdigris producing technique in film of solvent-soluble paint

Also Published As

Publication number Publication date
JPS6022066B2 (en) 1985-05-30

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